Thank you so much for your help. The problem was the relay. It has intermittent failure. Now when I turn the ac on the condensor/radiator fan turn on and no more rough idle.
I have another question what should be ac pressure for a jetta 07.A friend of my friend her ac does not blow cold air(between cold and hot). Her friend mechanic serviced her ac he replaced condenser and compressor. It was working fine the first week but now it blows not very cold air. The condenser fan turns on and the compressor engages
Sunday, May 29th, 2016 AT 7:45 PM